|
Search: id:A006489
|
|
|
| A006489 |
|
n-6, n, n+6 are primes.
(Formerly M4770)
|
|
+0
9
|
|
| 11, 13, 17, 23, 37, 47, 53, 67, 73, 103, 107, 157, 173, 233, 257, 263, 277, 353, 373, 563, 593, 607, 613, 647, 653, 733, 947, 977, 1097, 1103, 1123, 1187, 1223, 1283, 1297, 1367, 1433, 1453, 1487, 1493, 1607, 1613, 1663, 1747, 1753, 1783, 1867, 1873
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
"Prime Triplets" by Joseph Hirsch, Mathematics Teacher, 62 (1969), 467ff (see p. 471).
|
|
LINKS
|
T. D. Noe, Table of n, a(n) for n=1..1000
|
|
MATHEMATICA
|
q=6*1; lst={}; Do[p=Prime[n]; If[PrimeQ[p-q]&&PrimeQ[p+q], AppendTo[lst, p]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 17 2009]
|
|
CROSSREFS
|
Sequence in context: A048058 A048059 A106076 this_sequence A032621 A052031 A166009
Adjacent sequences: A006486 A006487 A006488 this_sequence A006490 A006491 A006492
|
|
KEYWORD
|
nonn,nice,easy
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com).
|
|
EXTENSIONS
|
More terms from James A. Sellers (sellersj(AT)math.psu.edu), Dec 24 1999
|
|
|
Search completed in 0.002 seconds
|
